Seiko Cal. 6387 - 566

The Seiko 6387-566 represents an important milestone in Seiko's 1987 lineup. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-e1668ba5ea9e]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1987

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